You can specify static and dynamic routing for each NSX Edge.
Dynamic routing provides the necessary forwarding information between Layer 2 broadcast domains, thereby allowing you to decrease Layer 2 broadcast domains and improve network efficiency and scale. NSX extends this intelligence to where the workloads reside for doing East-West routing. This allows more direct virtual machine to virtual machine communication without the added cost or time needed to extend hops. At the same time, NSX also provides North-South connectivity, thereby enabling tenants to access public networks.